| Project Area | Creation and control of spin current |
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| Project/Area Number |
19048004
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
TAKANASHI Koki 東北大学, 金属材料研究所, 教授 (00187981)
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| Co-Investigator(Kenkyū-buntansha) |
MIZUGUCHI Masaki 東北大学, 金属材料研究所, 准教授 (50397759)
三谷 誠司 東北大学, 金属材料研究所, 准教授 (20250813)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥85,400,000 (Direct Cost: ¥85,400,000)
Fiscal Year 2010: ¥19,000,000 (Direct Cost: ¥19,000,000)
Fiscal Year 2009: ¥23,700,000 (Direct Cost: ¥23,700,000)
Fiscal Year 2008: ¥23,700,000 (Direct Cost: ¥23,700,000)
Fiscal Year 2007: ¥19,000,000 (Direct Cost: ¥19,000,000)
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| Keywords | 磁性 / スピンエレクトロニクス / ナノ材料 / スピン流 / 物性機能 / スピン偏極 / ナノ構造 / ナノ粒子 / 磁気抵抗効果 / スピンエレクトロニクス3 |
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| Research Abstract |
Fabrication of highly efficient spin source aterials is an important issue for creation and control of spin current that is the flow of spin angular momentum. In this project, we fabricate highly spin-polarized / highly efficient spin soruce by nanostructure control. We achieve large magnetoresistance ratio at room temperature for giant magnetoresistance pillars with full-Heusler Co_2MnSi layers. We also successfully observed giant spin Hall effect in nanostructured devices with a Au Hall cross and an FePt perpendicular spin inhector, and carried out the systematic investigation of spin Hall effect in impurity doped-Au. In addision, the enhancement of spin relaxation time was observed in nanoparticles by measuring the magneto-transport properties in Fe, Cr, and Au nanoparticles.
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